From 1b83bd4062e22c74aee4261dc35893e02b26edbd Mon Sep 17 00:00:00 2001
From: printlndarling <printlndarling@qq.com>
Date: Sat, 22 Nov 2025 22:49:27 +0800
Subject: [PATCH] Fix handle empty stream chunks and enforce UTF-8 cache writes

---
 sgpt/cache.py            | 2 +-
 sgpt/handlers/handler.py | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/sgpt/cache.py b/sgpt/cache.py
index 5d63db8f..c176fe24 100644
--- a/sgpt/cache.py
+++ b/sgpt/cache.py
@@ -38,7 +38,7 @@ def wrapper(*args: Any, **kwargs: Any) -> Generator[str, None, None]:
                 result += i
                 yield i
             if "@FunctionCall" not in result:
-                file.write_text(result)
+                file.write_text(result, encoding="utf-8")
             self._delete_oldest_files(self.length)  # type: ignore
 
         return wrapper
diff --git a/sgpt/handlers/handler.py b/sgpt/handlers/handler.py
index a17d8024..2f4df95c 100644
--- a/sgpt/handlers/handler.py
+++ b/sgpt/handlers/handler.py
@@ -114,6 +114,8 @@ def get_completion(
 
         try:
             for chunk in response:
+                if not chunk.choices:
+                    continue
                 delta = chunk.choices[0].delta
 
                 # LiteLLM uses dict instead of Pydantic object like OpenAI does.